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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Need to upgrade the system

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      08-01-2013, 02:08 AM   #1
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Drives: 2011 335I (E90)
Join Date: Jul 2011
Location: Louisville, KY

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Need to upgrade the system

Ok, I'm very new to upgrading stereos sense I've always had a decent system in my vehicle (Mark Levison, Bose, Nakamichi etc.).

I've noticed when blasting down the highway with the sunroof tilted the rear sub will start to sound funny, but when closing the sunroof or turning down the radio, its fine.

What I want to do is eliminate this and make the system more powerful. I have a 2011 335i Sport with I-drive navi and a base sound system

What have you guys used in your cars speaker and sub-wise, and what would be required to get a louder, clearer, more powerful system? I would love to install tweeters in the doors, but I'm not sure how much work that would require. Do they make kits specifically for our cars?

And help would be great!
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      08-01-2013, 04:32 AM   #2
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Location: Essex

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Which rear sub are you referring to?
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